
body{
    padding:0;
    margin:0;
    margin-top: -36px;
    font-family: "微软雅黑";
    background-color: #E6E3DB;
}

/* 登录界面 */
#register{
    margin: 100px auto;
    width: 400px;
    height: 400px;
    background-color: whitesmoke;
    border-top: #f9d5a8 70px solid;
    border-radius: 20px;
}

#register .choice{
    margin: 90px auto;
    width: 180px;
    height: 100px;
}

#register ul{
    padding: 0;
    margin: 0;
}

#register  li{
    height: 55px;
    line-height: 55px;
    list-style: none;
    margin-top: 44px;
    text-align: center;
    background-color: #f9d5a8;
    border-radius: 20px;
    box-shadow: gray 2px 2px 2px;
}

#register a{
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 25px;
    color: rgb(37, 36, 36);
    text-decoration: none;
}

.top{
    /* 头部导航栏 */
    background-color: #f9d5a8;
    position: fixed;
    width: 100%;
    top: -17px;
    z-index: 9999;
}

.top>li{
    /* 头部导航栏单元格 */
    display: inline-block;
    text-decoration: none;
    font-size: 20px;
    margin-right: 80px;
    height: 40px;
    line-height: 40px;
    font-weight: 600;
}

.top a{
    text-decoration: none;
    color: black;
}


.addStudentFrom{
    /*添加学生信息表单*/
    background-color: #91B2B1;
    margin: 75px auto;
    margin-bottom: 50px;
    width:300px;
    padding: 20px;
    border-radius: 10px;
}

.addStudentFrom>div{
    display: block;
    margin: 20px auto;
    border-radius: 10px;
    margin-left:30px;
    color: #2F696C;
    font-weight: bold;
}

.addStudentFrom input{
    height: 30px;
    border-radius: 7.5px;
    padding-left:5px;
    margin-left:10px;
    border:1px solid #2F696C;
}

.addStudentFrom input[type=submit]{
    height: 40px;
    font-family:"微软雅黑";
    font-weight: bold;
    font-size: 16.5px;
    line-height: 40px;
    list-style: none;
    text-align: center;
    background-color: #2F696C;
    border-radius: 10px;
    display: inline-block;
    box-shadow: gray 2px 2px 2px;
    border:none;
    margin-left: 20px;
    color:#f9d5a8;
}

.addStudentFrom input[type=button]{
    height: 40px;
    font-family:"微软雅黑";
    font-weight: bold;
    font-size: 16.5px;
    line-height: 40px;
    list-style: none;
    text-align: center;
    background-color: #2F696C;
    border-radius: 10px;
    display: inline-block;
    box-shadow: gray 2px 2px 2px;
    border:none;
    margin-left: 20px;
    color:#f9d5a8;
    margin-top: 10px;
}

.addStudentFrom>button{
    margin:0 16px;
}

.table{
    /* 信息表格 */
    margin: 35px auto;
    width: 600px;
    background-color: #f9d5a8;
    border-collapse: collapse;
    padding:20px;
    border-radius: 10px;
    position: relative;
}

.table td{
    /* 表格单元格 */
    margin:20px;
    color:black;
    font-weight: bold;
    width: 110px;
    height: 40px;
}

.thead>td{
    /* 表格头部 */
    border-top:black 2px solid;
    border-bottom: black 2px solid;
    height: 50px;
    font-weight: bold;
    color:#2F696C;
}

.delBtn{
    /* 表格删除按钮 */
    height: 30px;
    background-color: #2F696C;
    border-radius: 5px;
    color:#f9d5a8;
    font-family: "微软雅黑";
    font-weight: bold;
    border:none;
    box-shadow: gray 2px 2px 2px;
    margin:1px auto;
    display: inline-block;
    margin-left: 4px;
}

#StudentMessage{
    /* 学生信息section */
    height: auto;
    width: 100%;
    background-color: #E6E3DB;
}

#StudentClass{
    /* 学生选课section */
    background-color: #E6E3DB;
    width: 100%;
    height: auto;
    margin-top:-20px;
}


#scoreTable{
    visibility: hidden;
    position: absolute;
    top: 20px;
}

#MyTable{
    position: relative;
}

#StudentScore{
    height: auto;
    position: relative;
}

#classTable{
    margin: 0px auto;
}